/*

    Copyright (C) 2018 Apple Inc. All Rights Reserved.

    See LICENSE.txt for this sample’s licensing information

    Abstract:

    Main entry point to the application which sets up AVAudioSession for picture in picture.

*/

import UIKit

import AVFoundation

@UIApplicationMain

class AppDelegate: UIResponder, UIApplicationDelegate {

    // MARK: Properties

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {

        /*

            Setup audio session for picture in picture playback.

            Application has to be configured correctly to be able to initiate picture in picture.

            This configuration involves:

            1. Setting UIBackgroundMode to audio under the project settings.

            2. Setting audio session category to AVAudioSessionCategoryPlayback or AVAudioSessionCategoryPlayAndRecord (as appropriate)

            If an application is not configured correctly, AVPictureInPictureController.pictureInPicturePossible

            returns false.

        */

        let audioSession = AVAudioSession.sharedInstance()

        do {

            try audioSession.setCategory(AVAudioSessionCategoryPlayback)

        } catch {

            print("Audio session setCategory failed")

        }

        return true

    }

}